Hastelloy C-4/UNS N06455 sheet/bar/pipe
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Equivalent designations

UNS N06455

DIN W. Nr. 2.4610


Form ASTM
Rod B 574
Plate, sheet and strip B 575
Seamless pipe and tube B 622
Welded pipe B 619, B 775
Welded tube B 626, B 751
Welding fitting B 366


Chemical composition

% Ni Cr Mo Fe Co C Mn Si P S Ti
min balance 14.0 14.0









max 18.0 17.0 3.0 2.0 0.015 1.00 0.08 0.040 0.030 0.70


Physical properties

Density 8.64 g/cm3
Melting range 1350-1380℃


Features:Hastelloy C-4 has outstanding high-temperature stability, and has excellent resistance to stress-corrosion cracking and oxidizing atmospheres up to 1040℃. It has exceptional resistance to a wide variety of chemical process environments, including hot contaminated mineral acids, solvents, chlorine and chlorine contaminated media (organic and inorganic), formic and acetic acids, acetic anhydride, and seawater and brine solutions.


Applications:Chemical processing involving wet chlorine, hypochloric acid, hydrochloric acid, acetic acid and acetic anhydride; flue gas scrubber systems; pickling operations; and electro-galvanizing.



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